Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8689597 | Ring rolling mill and ring rolling method | Yuji Ishiwari, Hiroaki Kikuchi, Hideo Takizawa | 2014-04-08 |
| 8365564 | Ring rolling mill and ring rolling method | Yuji Ishiwari, Hiroaki Kikuchi, Hideo Takizawa | 2013-02-05 |